avrinningsprocessor

An avrinningsprocessor, often translated as a runoff processor or drainage processor, is a tool or system designed to manage and direct surface water runoff. Its primary function is to control the flow of water that accumulates on impermeable surfaces like roads, parking lots, and rooftops, preventing erosion, flooding, and pollution of receiving water bodies. These processors can range from simple physical structures to complex engineered systems.

Common types of avrinningsprocessorer include swales, rain gardens, permeable pavements, and detention or retention basins. Swales are vegetated channels that slow down and filter runoff. Rain gardens are landscaped depressions designed to absorb and infiltrate stormwater. Permeable pavements allow water to pass through them, reducing surface runoff. Detention basins temporarily store runoff and release it slowly, while retention basins permanently hold water.

The implementation of avrinningsprocessorer is a key component of sustainable urban drainage systems (SUDS) or low-impact development (LID). These approaches aim to mimic natural hydrological processes to manage stormwater at its source. By treating runoff closer to where it falls, avrinningsprocessorer can reduce the burden on traditional sewer systems and improve the quality of water entering rivers, lakes, and oceans. They play a vital role in mitigating the environmental impacts of urbanization by reducing peak flow rates and removing pollutants such as sediment, oils, and nutrients.